Anonym Anonym
  • 20-08-2014
  • Mathematics
Answered

solve this equation -98=7(n-7)



Answer :

Аноним Аноним
  • 20-08-2014
-98=7(n-7)

-98=7n-49

7n=-98+49

7n=-49

Therefore n=-7, as 7(-7)=-49.
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Lilith
Lilith Lilith
  • 20-08-2014
[tex] -98=7(n-7)\\\\ -98=7n-7\cdot 7 \\ \\-98=7n-49\\ \\7n=-98+49\\\\7n=-49\ \ /:7\\\\n=-7[/tex]
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